From Savings Bond Advisor
Today the 10-year TIPS rate at auction dipped below zero for the first time since 10-year TIPS were introduced in February 1997. This is the rate those who buy TIPS through TreasuryDirect receive.
This also means that today I bonds were a better deal than TIPS at TreasuryDirect. While the zero percent fixed rate on I bonds isn't pretty, at least it's not negative!
"The reason for TIPS buying as of late has been fear that the Fed's policies will lead to inflation further down the road,